Die-casting machine.



J.BATE DIE CASTING MACHINE. APPLICATION FILED SEPT. I3. |918.

1,292,679. I AlatenT-ed M1128, 19'19l Il Q I 'l I [5 /7 II/l SWUQM'I'OZ James Baie;

Catton/4 m JAMES BATE, OF YPSILANTI, MICHIGAN.

DIE-CASTING MACHINE.

' Specication of Letters Patent.

Patented J an. 28, 1919.

Application med september 1e, 191s. serial No. 253,884.

To all whom t may concern.'

Be it known that I, JAMES BATE, a citi-y Im rovements in Die-Casting Machines, of Y which the following is a specification.

This invention relates to. die casting machines, the object in view being to produce amachine which will greatly facilitate the operation of casting dies, with the aid of compressed air, means bein provided for heating the metal contained 1n a suitable receptacle forming a part of the machine, and means being also provided for forcing the molten metal from suchreceptacle to the die or dies at any desired moment.

A further object of the invention is to provide means for intermittently filling the molten metal receptacle by allowing the molten metal to flow by gravity into such receptacle, the device embodying a heating hopper in which the molten metal is contained before it is allowed to flow into the above mentioned molten metal receptacle.

`W'ith the above and other objects in view,

Y the invention consists in the construction,

cupped formation as shown and formed in combination and arrangement of parts, as herein described, illustrated and claimed.

The accompanying drawing represents a view partly in elevation and partly in vertical section of the die casting machine.

The die casting machine of this invention comprises a hopper or pot 1 for the molten metal, said hopper being preferably of the side wall thereof with an outlet conduit 2 which terminates in a plurality of nozzles 3, one or'both of which may be used. Ordinarily, only one nozzle 3 is used, the other nozzle being plugged.' This enables either nozzle to be used according to the convenience in passing the molten metal onward to the die.` The pot or hopper 1 is formed in the bottom thereof with a metal receptacle 4 of a predetermined size, suiicient to contain the proper amount of metalto charge or ll one die. The upper edge of the receptacle 4 extends above the bottom of the hopper 1 and terminates in a beveled and machined edge or face 5, the purpose of which will presently appear. The bottom of the receptacle 4 is in communication with the receiving end of the outlet conduit 2. Ar-

ranged below the hopper 1 and the receptacle 4 is a burner 6 to maintain the contents of the hopper` 1 and the receptacle 4 in a molten state. A vJacket 7 surrounds the hopper and receptacle 4 andalso the burner 6V as shown and forms a support for the hopper.

Arranged above the top edge 5 of the receptacle'4 is a vertically movable compressed air nozzle 8 having the lower edge thereof beveled and machined as shown at 9, so as to squarelymeet the beveled edge 5 of the receptacle 4 and form a tight closure. The nozzle 8 is at the lower end of al tubular stem 10 which extends above the top of the hopper where it is connected to the lower end of a threaded sleeve 11, the same passing throughy the threaded bore 12 of a Vbearing member 13 supported upon the top of the hopper 1 or the inclosing jacket 7 thereof. Above the supporting member 13 an operating handle or lever 14 is fastened to the pressure screw -or threaded bearing 11 so that by moving -ng handle or lever 17 arranged over the handle or lever 14. The valve 16 has a main air passage 18 extending diametrically therethrough and a radial exhaust passage 19 at a right angle to and intersecting the passage 18. By shifting the handle 1.7, air may he allowed to pass from a compressed air supply pipe 20 through the valve 16 to the nozzle 8 to force the molten metal from the receptacle 4 through the outlet or transverse charging nozzle or nozzles 3 to the die or dies. B v shifting the handle 17 to another position, the compressed air in the machine is allowed-to escape vin the passage 19. to the atmosphere.

1. In a die casting machine, the combination of a metal hopper, having a metal holding receptacle of a predetermined size in the bottom portion thereof and also having an outlet conduit leading off from said receptacle, supporting means for said hopper, a compressed air supply pipe, an enlarged compressed air nozzle at the discharge end of said pipe, .means for shifting said nozzle into and out of contact with an edge of said .metal receptacle to control communication 'and out of Contact with an edge of said metal receptacle to controlv communication between said hopper and receptacle, means for controlling the admission of compressed airfto nozzle.

said compressed air nozzle,the nozzle ad# justing -means comprising a threaded mem- 'ber having `a fixed relaton'to the stem of said nozzle, a bearing member in which said threaded member'is held, and manually operable means for turning saidthreaded member to raise and lovver said compressed air 3, In a die casting machine, the combina- Y tion of a metal hopper, having a` metal holding receptacle' of a predetermined size-in the bottom portion thereof Iand also having an outlet conduit leading od froml said receptacle, supporting means for said hopper, a compressed air supplyv pipe, an enlarged compressed airnozzle at the discharge end of said pipe, means for shifting said nozzle into and ont of AContact with an' edge of said 35 metal receptacle to control communication between said hopper and receptacle, and means for controlling the admission of compressed alr to 'said compressedlair nozzle, the

fmeeting edges o-said compressed ,air nozzle 40 and metal receptaclebelng beveled and machined. i l 4Q In a die Ycasting machine, the combination of a metal hopper, having a metal hold#l ing receptacle oi' a predetermined sizein-the 45 bottom portion thereof and also having an outlet conduit leading olf lfrom said recepf ytacle, supporting means for vsaid'hopper, a

compressed air supply pipe, an' enlarged compressed air nozzle atthe discharge end of said pipe, means for shifting said nozzle into-and out ofl contact with an edge of said metal receptacle to control communication between said hopper Aand receptacle, and` means for controlling the admission of com-I pressed air to said compressed air nozzle, said air controlling means embodying a two Way valve'having a passage to admitcompressed air to said compressed yair nozzle and another to liberate the compressed air 69 from said nozzle.

In testimonywhereof I ailix my signature.

A Janes earn. 

